Zfish week06

一:    

    1.電腦圖學之父:Ivan Sutherland (Sketchpad)。

二:

1-1.根據week04第一點，執行Transformation.exe。

1-2.

二:鍵盤事件

1.鍵盤

#include <GL/glut.h>

#include <stdio.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        glColor3f(1, 1, 0);

        glutSolidTeapot(0.3);

    glutSwapBuffers();

}

void Keyboard(unsigned char key, int x, int y)

{

    printf("現在按下:%c 座標在:%d %d\n",key, x, y);

}

int main(int argc, char *argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week06 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(Keyboard);

    glutMainLoop();

}

2.鍵盤+滑鼠

#include <GL/glut.h>

#include <stdio.h>

float x=0, y=0, z=0, oldX, oldY;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef( (x-150)/150.0, -(y-150)/150.0, z);

        glColor3f(1, 1, 0);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void Keyboard(unsigned char key, int x, int y)

{

    printf("現在按下:%c 座標在:%d %d\n",key, x, y);

}

void mouse(int button, int state, int mouseX, int mouseY)

{

    oldX= mouseX; oldY= mouseY;

}

void motion(int mouseX, int mouseY)

{

    x += (mouseX-oldX);

    y += (mouseY-oldY);

    oldX= mouseX; oldY= mouseY;

    display();

}

int main(int argc, char **argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week06 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(Keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

3.滑鼠縮放

#include <GL/glut.h>

#include <stdio.h>

float x=0, y=0, z=0, oldX, oldY;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef( (x-150)/150.0, -(y-150)/150.0, z);

        glColor3f(1, 1, 0);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void Keyboard(unsigned char key, int x, int y)

{

    printf("現在按下:%c 座標在:%d %d\n",key, x, y);

}

void mouse(int button, int state, int mouseX, int mouseY)

{

    oldX= mouseX; oldY= mouseY;

}

void motion(int mouseX, int mouseY)

{

    if(mouseX>oldX) scale=scale*1.01;

    if(mouseX<oldX) scale=scale*0.99;

    //x += (mouseX-oldX);

    //y += (mouseY-oldY);

    oldX= mouseX; oldY= mouseY;

    display();

}

int main(int argc, char **argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week06 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(Keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

4.鍵盤選擇要移動(w)、旋轉(e)、縮放(r)。

#include <GL/glut.h>

#include <stdio.h>

float x=0, y=0, z=0, scale=1.0, angle=0.0, oldX, oldY;

int now=1;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef( (x-150)/150.0, -(y-150)/150.0, z); 

    glRotatef(angle, 0, 0, 1);

    glScalef(scale, scale, scale);

        glColor3f(1, 1, 0);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void Keyboard(unsigned char key, int x, int y)///像MAYA

{

    if(key == 'W' || key == 'w') now=1; ///移動

    if(key == 'E' || key == 'e') now=2; ///旋轉

    if(key == 'R' || key == 'r') now=3; ///縮放

}

void mouse(int button, int state, int mouseX, int mouseY)

{

    oldX= mouseX; oldY= mouseY;

}

void motion(int mouseX, int mouseY)

{

    if(now == 1){ ///移動

        x += (mouseX-oldX);

        y += (mouseY-oldY);

    }else if(now == 3){ ///縮放

        if(mouseX>oldX) scale= scale * 1.01;

        if(mouseX<oldX) scale= scale * 0.99;

    }

    oldX= mouseX; oldY= mouseY;

    display();

}

int main(int argc, char **argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week06 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(Keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

5.

#include <GL/glut.h>

#include <stdio.h>

float x=250, y=250, z=0, scale=1.0, angle=0.0, oldX, oldY;

int now=1;

void display()

{

    glClearColor(0.8, 0.8, 0.8, 1);///顏色R,G,B,A A->Alpha值

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef( (x-150)/150.0, -(y-150)/150.0, z); ///w

    glRotatef(angle, 0, 0, 1);///e

    glScalef(scale, scale, scale);///r

        glColor3f(1, 1, 0);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void Keyboard(unsigned char key, int x, int y)///像MAYA

{

    if(key == 'W' || key == 'w') now=1; ///移動

    if(key == 'E' || key == 'e') now=2; ///旋轉

    if(key == 'R' || key == 'r') now=3; ///縮放

}

void mouse(int button, int state, int mouseX, int mouseY)

{

    oldX= mouseX; oldY= mouseY;

}

void motion(int mouseX, int mouseY)

{

    if(now == 1){ ///移動

        x += (mouseX-oldX);

        y += (mouseY-oldY);

    }else if(now==2){///旋轉

        angle+=(mouseX-oldX);

    }else if(now == 3){ ///縮放

        if(mouseX>oldX) scale= scale * 1.01;

        if(mouseX<oldX) scale= scale * 0.99;

    }

    oldX= mouseX; oldY= mouseY;

    display();

}

int main(int argc, char **argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutInitWindowSize(500,500);///視窗大小

    glutCreateWindow("week06 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(Keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}